Photos: Can you spot the baby bump?

Kate is 6 months pregnant — but you'd never know it...

Prince Charles, Prince of Wales, known as the Duke of Rothesay when in Scotland, Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge, known as the Earl and Countess of Strathearn in Scotland, stand together during a visit to Dumfries House in Ayrshire, Scotland. The Duke and Duchess of Cambridge braved the bitter cold to attend the opening of an outdoor centre in Scotland. The couple joined the Prince of Wales at Dumfries House in Ayrshire where the Prince of Wales has led a regeneration project since 2007.